Earthdata resources for users working with NASA’s Global Navigation Satellite System (GNSS) data include summary reports, news announcements, and related links.
GNSS Data Summary Reports
- Weekly GNSS data holdings
- Weekly MGEX data holdings
- Mail messages
GNSS Related Links
- International GNSS Service (IGS)
- IGS Tracking Stations
- IGS Analysis Centers
- IGS Data Centers
- IGS Analysis Center Coordinator (ACC) web sites
- IGS Real-Time Service (RTS)
- IGS Multi-GNSS Experiment (MGEX), including satellite information
- Current IGS station coordinates
- IGS site logs
- IGS antenna correction file (igs20.atx)
- IGS antenna correction file (igs14.atx)
- IGS data and product formats
- RINEX Version 2.11
- RINEX Version 3.03
- Guide to using IGS products
- ITRF solutions
- Spacecraft ID Correspondence Table for Orbit Exchange Files (SP3c)
- GNSS system status information
- NOAA's Continuously Operating Reference Stations (CORS)
- UNAVCO
- GPS Seamless Archive Center (GSAC)
- GLONASS
- Interactive GPS Calendar
- Earth orientation animations
